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3 years ago

7

Determine if the following statement is true or false: When the percent of change is a decrease, the original amount will be gre

ater than the new amount.

1 answer:

drek231 [11]3 years ago

6 0

Answer:

false

Step-by-step explanation:

if u decrease the percent of change its going to go down not up

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Factor -7x3 + 21x2 + 3x - 9 by grouping. What is the resulting expression?

irga5000 [103]

Answer:

$(x-3)(-7x^2+3)$ is the resulting expression after grouping

Step-by-step explanation:

Given:

$-7x^3+21x^2+3x-9$

Now taking common $-7x^2$ from 1st 2 numbers and and 3 common from last we get

$-7x^2(x-3)+3(x-3)$

Now taking x-3 common from both numbers we get

$(x-3)(-7x^2+3)$ which is the final equation after grouping

8 0

4 years ago

What is 0.000000685 written in scientific notation?

maria [59]

we have

$0.000000685$

we know that

$0.000000685=\frac{685}{1,000,000,000} =\frac{685}{10^{9}}=685*10^{-9}$

$685*10^{-9} =6.85*10^{-7}$

therefore

<u>the answer is</u>

$6.85*10^{-7}$

3 0

3 years ago

Read 2 more answers

What is the square root of -1?

suter [353]

Answer:

i

Step-by-step explanation:

Why is i the square root of negative one?

The term "imaginary" is used because there is no real number having a negative square. There are two complex square roots of −1, namely i and −i, just as there are two complex square roots of every real number other than zero, which has one double square root.

6 0

4 years ago

C=(4+y)h Solve for y

True [87]

Im Not 100% spüre but i Hope this helps:

C=4h+hy
C-4h/h= y

Y= C-4h/h

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4 years ago

HELP PLZ 3MINS ITS DUEE

Luden [163]

Answer:

11

Step-by-step explanation:

1/2 times 2³=4

+7=11

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3 years ago